Difference between revisions of "83Plus:BCALLs:4A53"
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m (→Example: Wow, was on drugs when wrote original example.) |
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== Example == | == Example == | ||
| − | <nowiki> | + | <nowiki> ld hl, symTable |
| − | + | SymLoop: | |
| + | ;Do something with symbol table entry | ||
B_CALL MoveToNextSym | B_CALL MoveToNextSym | ||
| − | |||
ld de,(pTemp) | ld de,(pTemp) | ||
B_CALL CpHLDE | B_CALL CpHLDE | ||
jr nz,SymLoop</nowiki> | jr nz,SymLoop</nowiki> | ||
Revision as of 10:41, 26 March 2005
Synopsis
Official Name: MoveToNextSym
BCALL Address: 4A53
Finds the next entry in the symbol table.
Inputs
- HL: points to type byte of current symbol table entry
Outputs
- HL: points to type byte of next symbol table entry
Registers Destroyed
- AF, DE
Comments
This routine can be used to traverse both the program/list and the regular symbol tables. It does not do bound checking, so you must check if HL equals the value at pTemp yourself to see if you've reached the end of the table. The example below browses the entire symbol table.
Example
ld hl, symTable SymLoop: ;Do something with symbol table entry B_CALL MoveToNextSym ld de,(pTemp) B_CALL CpHLDE jr nz,SymLoop
